/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Snapping/ModelingSceneSnappingManager.h
Explicitly populate the spatial-cache tracking set with specific Actors/Components (alternative to OnActorAdded route)
virtual void BuildSpatialCacheForWorld ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool([AActor](API\Runtime\Engine\GameFramework\AActor) *)> ActorFilter, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool([UPrimitiveComponent](API\Runtime\Engine\Components\UPrimitiveComponent) *)> PrimitiveFilter )